Flour-bolting reel.



M. E. ROZELLE.

FLOUR BOLTING REEL.

APPLICATION FILED FEB. 24, 19M. RENEWED JULY 3|, 191 6. 1,197,548.

Patented Sept. 5, .1916.

2 SHEETSSHEET I MN N o o M W %N w M. E. ROZELLE.

FLOUR BOLTING REEL. :APPumoN men FEB. 24, m4. RENEW ED.JULY s1. 1'916.

Patented Sept. 5, 1915.

2 SHEETSQSHEE'T 2.

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MARION EUGENE ROZELLE, OF CI'IAMBERSBURG, PENNSYLVANIA.

FLOUR-BOLTING REEL.

Specification of Letters Patent.

Patented Sept. 5, 1916.

Application filed. February 24, 1914, Serial No. 820,507. Renewed July31, 1916. Serial No. 112,479.

To all whom it may concern:

Be it known that I, MARION E. RoznLLn, a citizen of the United States,residing in the city of Chambersburg, in the county of Franklin andState of Pennsylvania, have invented certain new and useful Improvementsin Flour-Bolting Reels; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to milling machinery, and has for its object theprovision of a combined bolting reel and middlings mill having thecharacteristic features hereinafter described.

The present machine is especially designed to receive the stock comingfrom the rolls of a flour mill, and to further bolt and reduce the same.By using-the machine in combi' nation with the rolls of a roller mill,the number of reductions can be increased, since the stock is furtherreduced and bolted each time it passes through one of the machines. In aroller mill, in which two reductions are ordinarily obtained, two morereductions can be made by using the present improved bolter andmiddlings mill to receive the stock coming from each set of rolls.

The middlings mill, which is combined with the bolting reel, ispreferably of the same general character as that disclosed in my priorPatent, No. 1,Q78,517,iissued November 11, 1913, and is preferablylocated directly in the head of the reel to render the constructioncompact and otherwise advantageous, as will hereinafter be seen.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is an elevation, partly in section, of the improved boltingreel having a mid dlings mill located in'its head; Fig. 2 is anelevation, partly in section, of a combined bolting reel and middlingsmill, such as shown in Fig. 1, having an additional bolting reelassociatedtherewith to bolt out the finer material and conveying thecoarser material directly to the combined bolter and middlings mill;Fig. 3 is a broken detail view showing a modified form of mill locatedin the head of the bolting reel; and Fig. 4: is an end elevation of themachine showing the mode of driving the operating parts thereof.

Referring to the drawings, the 'casingor housing of the machine isindicated at A, and may be of any suitable shape or design adapted forthe purpose. Rotatably mounted in the casing A, is a bolting reel,denoted generally by the reference character B. The said reel isprovided with cylindrical inlet and outlet portions 1 and 2,respectively, constituting trunnions journaled in the bearings 3 and 4E.The bolting reel B may be covered with any appropriate material suitablefor bolting the stock, such as silk or the like, indicated at 5.

Mounted in the bolting reel 13 and arranged co-axially therewith, is ahollow shaft 6 mounted for rotation independently of the reel B, such asby journaling the same in a suitable bearing 7 associated with astationary part of the construction. The shaft 6 carries a conveyor 8disposed within the hollow trunnion 1 and serves to feed materialintroduced at the inlet into the bolting reel. A similar conveyer 9,mounted upon the shaft 6 and disposed within the hollow trunnion 2,serves to convey the material from the bolting reel and discharge thesame through the outlet 10.

In order to increase the efliciency of the bolter, a fan 11 is providedmounted in the head of the reel and carried by the shaft 6. The head ofthe reel is inclosed in a casing 12 having suitable valvesv 13 to admitair thereto, and a counter-weighted closure 1%, which automaticallyreleases any flour dust which is drawn into the casing 12 by the fan.The rotation of the fan 11 maintains a circulation of air by drawing thesame from the casing A into the casing 12 through valves 13, and thenforces the air through the bolting reel back into the casing A. The air,during this circulation, forces the finer particles of the stock throughthe bolting cloth and into the casing A. The finer material so bolteddrops to the bottom of the casing A, where it is conducted away bysuitable conveyers, actuated in any appropriate manner, such as bythesprockets 15.

To aid the air current created by the fan 11 in forcing thematerialthrough the bolting cloth, air distributing blades 16 are provided,carried by the shaft 6, and spirally shaped, as shown in the drawing, todistribute the air over the surface of the bolting cloth, therebyincreasing the efficiency of the bolting reel.

The shaft 6, and the parts which it carries, may be rotated in the samedirection as the bolting reel B, and at a greater speed than the reel orsaid shaft may be rotated 1n an opposite direction to the reel by anysultable driving means. In the present instance,

the shaft 6 is rotated at its left-hand extremity (Fig. l) by anyappropriate means, and the right-hand extremity is provided with apinion 17. Motion is transmitted from the shaft 6 to the reel preferablyby means of a counter-shaft 18 carrying a gear 19 meshing with thepinion 17, and also carrying a pinion 20 meshing with the gear 21,carried by the hollow trunnion 2 of the bolting reel. By this means, thebolting reel and the shaft 6, carrying the fan 11 and distributer blades16, are driven at differential speeds. Asabove stated, a middlings millis located in the head of the reel, which, in the present instance, isrepresented by a ring 22 adapted to rotate with the hollow trunnion land reel B. A resistance plate or disk 23 cooperates with the ring 22and is mounted on the shaft 6 by means of a sleeve 24, which is free toslide longitudinally on said shaft. A pin 25 passes diametricallythrough the sleeve 24 and through diametrically opposite slots 26 formedin the hollow shaft 6. The pin 25 is engaged by the extremity of a rod27 mounted within the hollow shaft 6 and extending to the rear of themachine, where it is acted upon by a weight 28 pivotally mounted at 29,which tends to yieldingly hold the rod 27, and, therefore, the disk 23in its extreme left-hand position with re spect to Fig. 1. A suitablethrust bearing 30 is interposed between the extremity of the rod 27 andthe lever 31,which carries the weight 28.

From the foregoing construction, it will be seen that the rod 27 has afree limited movement within the hollow shaft 6, and that the disk 23 isyieldingly held in operative relation with the ring 22. The conveyer 8which serves to feed the material to the reel also places the stockunder high pressure by forcing it against the disk 23, which yieldinglyretards the escape of the stock. As the stock crushed by its subjectionto this high pressure immerges between the ring and the disk, it isthoroughly loosened up and placed in the best possible condition forbolting.

Fig. 3 illustrates a modified form of the middlings mill, the resistancedisk 23 being carried by the reel B. The said disk 23 is yieldingly heldagainst the incoming material preferably by means of springs 32,reacting at one end against the reel B, and at the other end againstsuitable shoulders 33 provided on pins 34:, with which the springs areco-axially placed and which carry the disk 28. The stock introducedtothe machine is forced by the conveyer 8 against the disk 23, and,therefore, placed under high pressure, after which it passes radiallybetween the head of the reel B and said disk into the bolting reel.

In Fig. 2, a combined middlings mill and bolting reel is illustratedsimilar to that hereinbefore described, but having associated therewith,a second bolting reel indicated generally by C. The two reels B and Care connected by a hollow trunnion 1 through which the material passesfrom the reel C to the reel B, after being subjected to a bolting actionin the former. The bolting reel C may be identical with that shown inFig. 1, except that the middlings mill is omitted from its head, and theparts at the rear thereof dispensed with in order that the same may bedirectly connected with the combined bolting reel and middlings mill, asclearly .shown in Fig. 2. This unit has been especially designed for usein a flour mill, in which several reductions are made on smooth rollers,and in which a bolting reel is employed to bolt the material coming fromeach set of rollers. By substituting the units shown in Fig. 2, for thebolting reels of such a flour mill, it is obvious that more reductionsmay be obtained, since the material coming from each set of rolls wouldthen be subject to the action of the middlings mill in the head of thebolting reel B. The stock coming from the smooth rolls would beintroduced at D and conveyed into the bolting reel C, where the finerparticles would be forced through the bolting cloth into the lower partof the casing, and the coarser particles conveyed through the hollowtrunnion 1 to the bolting reel B, being subjected on its way to theaction of the middlings mill 2223. After the stock is further reduced bythe middlings mill, it is again bolted in the reel B and may bedischarged through the outlet 10. It will be seen, therefore, that theunit disclosed in Fig. 2 is adapted to receive the unbolted materialafter it has been ground by any suitable means, bolt the same, addanother reduction and discharge the material in a bolted condition readyfor further grinding, if such is necessary.

Obviously numerous modifications and changes can be made in the detailsof construction without departing from the spirit or scope of theinvention, as defined in the accompanying claims.

What I claim is 1. In milling apparatus, the combination of a rotarybolting reel having a hollow feed trunnion, a conveyer operating in saidtrunnion, and a yielding resistance plate controlling the communicationbetween the trunnion and bolting reel whereby the stock is placed underhigh pressure and disintegrated in being forced by the conveyer into thebolting reel.

2. In milling apparatus, the combination of a rotary bolting reel havinga hollow feed trunnion, means operated in said trunnion for forcing thestock toward the bolting reel, and a yielding resistance platecontrolling the communication between the trunnion and the bolting reelwhereby the stock is placed under high pressure and disintegrated inbeing forced by the conveyer into the bolting reel.

3. In milling apparatus, the combination of a rotary bolting reel havinga hollow feed trunnion, a yieldmg resistance plate interposed in thepath of movement of the stock introduced to the reel through thetrunnion, and a conveyer operating in said trunnion for forcing thestock into the reel and placing the same under high pressure.

4. Milling apparatus comprising a rotary bolting reel having an inletopening, a yielding resistance plate controlling said opening, and meansto force stock toward said plate and into the reel whereby the stock isplaced under high pressure before delivery to the reel and loosened upas it passes said resistance plate.

5. In milling apparatus, the combination of a rotary bolting reel havinga hollow feed trunnion, a shaft rotatable independently of the boltingreel and coa-Xially disposed with respect thereto, said shaft having afeed conveyer coaxially disposed in said trunnion, a grinding ringrotatable with the reel and positioned at the point of communicationbetween the trunnion and the reel, and a yieldin resistance platerotated by said shaft an cooperating with said ring.

6. Milling apparatus comprising a bolting reel having a feed openingassociated therewith, a yielding resistance plate interposed in the pathof movement of the stock being fed to the reel, and single means forfeeding stock to the reel and for forcing it through the middlings millwhereby the stock is placed under high pressure in advance of theresistance plate and loosened up as it is delivered to the reel.

7 In milling machinery, the combination of a main casing, a bolting reelmounted therein, a fan associated with the reel and located in said maincasing to maintain a continuous circulation of air through the reel andthen back through the casing to the fan, and a middlings mill disposedin the end of said reel.

8. In milling machinery, the combination of a main casing, a boltingreel rotatably mounted therein, a shaft coaxially disposed with respectto the reel and mounted to rotate at a different speed from said reel, afan carried by said shaft to maintain a continuous circulation of airthrough the reel and then back through the casing to the fan, airdistributing blades mounted on said shaft to distribute the air in thereel and facilitate bolting of the material, and a middlings millforming a component part of the reel.

9. In milling machinery, the combination of a casing, a bolting reelro-tatably mounted therein, an air chamber surrounding the end of saidreel and in communication with the casing, a shaft coaxially disposedwith respect to the reel and mounted for rotary movement independent ofthe reel, a fan carried by said shaft adapted to maintain a circulationof air through the reel, the casing and said chamber, and a middlingsmill disposed in the end of said reel.

In testimony whereof I affix my signature, in presence of two witnesses.

MARION EUGENE ROZELLE.

Witnesses:

CLUMAKE, LEO A. DIEHL.

Copies of this patent may be obtained for dve cents each, by addressingthe Commissioner of ratentl. Washington, D. C.

